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Finding the Fourth Proportional to 209,458.80, 313,842.60 and 104,050.80

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Solution

The fourth proportional to 209,458.80, 313,842.60 and 104,050.80 is: 155,904.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,458.80 : 313,842.60 = 104,050.80 : x
  2. Step 2: Convert to fraction form
    209,458.80/313,842.60 = 104,050.80/x
  3. Step 3: Cross multiply
    209,458.80x = 313,842.60 × 104,050.80
  4. Step 4: Simplify right side
    209,458.80x = 32,655,573,604.08
  5. Step 5: Solve for x
    x = 32,655,573,604.08/209,458.80
  6. Step 6: Final answer
    x = 155,904.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.